Locking mechanism for typewriting



'Feb. 13, 1945. H. E. KAMMEL LOCKING MECHANISM FOR TYPEWRITINGCALCULATING MACHINES 9 Sheets-Sheet 1 Original Filed May 14, 1934 H. E.KAMMEL LOCKING MECHANISM FOR TYPEWRITING CALCULATING MACHINES OriginalFiled May 14, 1934 9 Sheets-Sheet 2 Feb. 13, 1945.

Feb. 13, 1945; H. E. KAMMEL LOCKING MECHANISM FOR TYPEWRITINGCALCULATING MACHINES 9 Sheet-Sheet 3 Original Filed May 14, 1934 Qw mmmFeb. 13, 1945. H. E. KAMMEL 2,369,574

LOCKING MECHANISM FOR TYPEWRITING CALCULATING MACHINES Original FiledMay 14, 19:54 9 sheets-Sheet 4 1 2 3 5 6 v a 9 1o 11 Assuran s l f mMomh 55.23; 33% mamas r220: Mm 520W 3:020 aschmidt 15 May 200- 10.006.00. 4.00 3.75 0.55 3430* 450* 3 F1 A IL FiglZ Ina 617 Feia. 13, 1945H. E. KAMMEL LOCI KING MECHANISM FOR TYPEWRITING CALCULATING MACHINESOriginal Filed May 14. 1934 9 Sheets-Sheet 5 Feb. 13, 1945. H. E. KAMMEL2,369,574

LOCKING MECHANISM FOR TYPEWRITING CALCULATING MACHINES Original FiledMay 14, 1934 9 Sheets-Sheet s H. E. KAMMEL 2,369,574

LOCKING MECHANISM FOR TYPEWRITING CALCULATING MACHINES Feb. 13, 1945.

Original Filed May 14, 1934 9 S s t 7 Hifd'kv me Feb. 13, 1945. H, E,KAMME 2,369,574

LOCKING MECHANISM FOR TYPEWRITING CALCULATING MACHINES Original FiledMay 14, 1934 9 Sheets-Sheet 8 age Feb. 13, 1945.

H E. KAMMEL 2,369,574

LOCKING MECHANISM FOR TYPEWRITING CALCULATING MACHINES Original FiledMay 14, 1934 9 Sheets-Sheet 9 Fig. 71.

% s zz Patented Feb. 13, 1945,

LOCKING MECHANISM FOR TYPEWRITING I CALCULATING MACHINES Hugo ErnstKimmel, Zella-Mehlls, Germany;

vested in the Alien Property Custodian Original application May 14,1934, Serial No. 725,836. Divided and this application July 31, 1039,Serial No. 287,869. In Germany May 15,

Th invention relates to locking mechanisms for typewriting calculatingmachines exemplified in my co-pending application Ser. No. 725,636,

filed May 14, 1934. (now U. 8. Patent 2,236,642, issued April 1, 1941),and of which the present application is a division,

Prior locking mechanisms have had the disadvantage that their wholeconstruction was more or less complicated, since for the withdrawal ofthe values, members are provided other than those for the registrationof the values. For this reason former locking mechanisms were expensivein construction and their operation was unreliable. I

According to the present invention, these disadvantages are now obviatedby providing universal locking members which are inserted between thecalculating mechanisms, respectively, and the number typing keys,respectively, and between the calculating mechanism, respectively, andthe totalizer, and which control the typing and calculating operationsin the registration and withdrawal of the values.

In the drawings, one example of construction of the subject of theinvention is illustrated as applied to a Mercedes Addelektra typewritingcalculating machine.

Figure 1 shows a front elevation of the whole typewriting calculatingmachine.

Figure 2 shows a left-hand side elevation of the machine.

Figure 3 shows a front elevation looking to wards the calculatingmembers, together with the calculating segment and a part of thechangeover gear for the cross-totalizers, in which view the numbertyping keys and'the letter typing keys are represented in section.

Figure 5 shows a perspective illustration viewed common to all thecalculating keys, forthe coupling, in which view the individual partsfor the sake of better insight are represented separated from oneanother.

Figure 6 showsin perspective, details of the control mechanism. for thecoupling, the parts of which are likewise drawn out from one another.

Figure '1 shows a perspective illustration of thetransmission andcontrol mechanisms arranged between the typing and calculating keys,viewed 3 Claims. (01. ass-s9) together with the change-over gear for thecolumn totalizers and a part of the change over gear for the crosstotalizers, in which view the individual parts are illustrated drawn outfrom one another.

the detail parts are illustrated in a conditionseparated from oneanother.

Figure 12 shows a-partially illustratedsheet, tilled in with an exampleof calculation which the machine is capable of performing.

The machine housing i (Figures 1 and 2) carries by means of rails 2 and3 the paper carriage 4, in which a platen I (Figure 2) is arranged. Tothe front side of the paper carriage, there is fixed a supporting rail1, for the column totalizers T, which will be hereinafter described indetail.

A motor M arranged on the right-hand side oi the machine rotates a shaft21 clockwise (see arrow (1, Fig. 2), the shaft extending across themachine frame from side to side, and being fluted, as at C, to drive thetype bars, as hereinafter explained.

Th typewriter mechanisms proper include letter keys 3!, number keys 33and calculating keys 34 (Figs. 1, 2 and 7) mounted upon key levers 36,3! and 82, respectively, the letter key levers 82 being movabledownwardly around pivot 31 against the action of springs 38. Thecalculating keys I! act indirectly on the number key levers 35 in amanner and by means hereinafter described. By means of a pin All, adriving pawl ii, is mounted on each key lever 35, 36, and this pawl isso acted upon by the tension spring 42, that its lug it rests against anose ll, of a key lever 38, ii. The now ,0! the driving pawl 4|, engagesover a nose I, of the draw hook 4!, Jointed to the intermediate lever41, by a pin 48, and the draw-hook is acted upon continually round itspin in the anti-clockwise direction from the front leit-hand side of themachine, by a tension spring ill,- and presses upwards shaft 0, asdescribed in the patent to Schulze, No.

1,789,661, dated January 20, 1931. The control tooth 490 is first of allrotated slightly and then takes the draw-hook d9 along with it to theright so that the intermediate lever ll is swung round the shaft 52, inthe clockwise direction. Accordingly, the type lever 55 is swung in theanticlockwise direction round the shaft 55, and strikes the platen 5.

The spur wheel 28(Figures l and 2) which is non-rotatably mounted on theshaft 2? (Figure l) engages with a spur wheel 56, which is rigidlymounted on the shaft The spur wheel E56 again is in engagement with thespur wheel E59, rigidly mounted on the calculator drive shaft (Figures1, 2, 4 and 5).

The above described mechanisms do not belong to the invention but havebeen briefly described for the better understanding of the parts tov behereinafter described pertaining to the invention.

The calculating mechanism drive shaft 58 (Figures 2, 4. 5) is rotatablymounted in the hearing eye 60, arranged in the right hand side of themachine housing l, and the opposite end 5841, of the shaft 58, isrotatably mounted in a bearing ti, which is fixed by means of the screws62, to a bridge 63 connecting the two side walls, 85 and 65. A fulcrumrod Bil (Figures 2, 4, 5, 7 and 8) is rigidly mounted by means of setscrews (il, screwed into bosses 65 (Figure i) on the left and right handside walls til and (55 of the machine housing I, and on this shaft,members to be hereinafter described, are swingably mounted.

In the bearing eye iii (Figures 2 and 5),, a cam 69 (Figures 2, 4, 5) isrotatably mounted Icy-means of sleeve Bea, rigidly fixed to the cam. Thecam 69 is rigidly connected to the cams ii and 712 by means of screws(not illustrated) which pass through holes 10 of the cams. Thecalculating drive shaft 58, however, remains without any action on thecams, since the earns 69, ii and E2, as Well as the sleeveiSa, havelarger bores :11 (Fig. 5) than the diameter of the shaft 58. The cams89, H and 12 are prevented from lateral displacement by contact of theside 69?) of the cam 69 with the edge Bio of the bearing eye BI, and bycontact of the cam 12 with the toothed wheel 13, non-rotatably mountedon a non-cite cular part of the calculating drive shaft 58. The toothedwheel 13 participates in the rotation of the calculating drive shaft 58,which when the machine is operated, continually rotates in. the arrowdirection b (Fig. 5). On the cam 12 a. pawl 14 (Figures 4, 5) isdisplaceably arranged by means of pins 11 and I8, which engage inelongated slots 15 of the cam 12, in elongated slots 16 of the cam 'I l,and in elongated slots (not illustrated) in the cam 69. The pawl 14 isacted on continually in the direction of the arrow 0 (Figure 5) by a.compression spring 19, which abuts against the pin I8, fixed to the pawlII, and against the face 12a of the slot I5 in the cam I2. Moreover, astud 80 formed on the pawl 14 co-acts with a clutch disengaging detentto be hereinafter described. in detail, by means of which the aeeas'ze18 of the pawl I4, which project from the lefthand side of the cam 89,a. locking member 8| is fixed, in the manner illustrated in Figure 5, sothat the pawl 14 always remains in connection with the cams 69, H andI2, and is prevented from falling out. It may be remarked at this pointthat for the whole ten calculating keys 3!, only one coupling as justdescribed, is necessary.

The ten calculating key levers 82 (Figures 1, 2, i, 5, '7) which carrythe calculating keys 34, are swingably mounted on the shaft 68, alreadymentioned. The rearwardly directed limbs of the calculating key leversB2 are somewhat upwardly bent at their ends, and have arched surfaces82a. (Figure 7) to contact the similarly convex ends of the downwardlydirected projections 84 of the U shaped stop members 85. The latter areswin ably mounted on a printer shaft 8? (Figures 2, 3 and 7) which isrotatably mounted by means of two set screws 86 (Figures 3 and 7) theset screws 86 is screwed into a corresponding angle member (Figure 3)the angle members being fixed by means of screws 88b to both sidemembers we of the cradle housing. The stop members 85, moreover, areheld in position the axial directions by means of distance Pieces 85b(Figure 3) arranged on the shaft 8i.

0n the left-hand limbs of the stop members 85,

' which correspond to the values 1 and 9, and

til-

on the right-hand limbs of the stop members 85 (Figure 3) whichcorrespond to the values 2" to 8, projections 88) (Figures 2, 3 and 7)areerranged, with which engage springs d9, connected to pins 90 (Figure2) riveted into angle members Ell (Figure 2) which are fastened byscrews 86a to a bar 92 (Figures 2 and 7) attached to the two side wallsof the machine frame in any suitable manner. By means of these springs89 the stop pieces d5 are acted on in the clockwise direction round theshaft 9?, so that they rest with their faces 350 (Figure 2) against thebar d2, whereby the normal position of these stop members 835 isdetermined. Since the calculating key levers 82 are acted upon by theirown weight in the clockwise direction round their pivot rod 68, andconsequently rest with their arched faces 82a against the arched faces83 of the stop members, the normal position of the calculating keylevers 82 is determined. A depression simultaneously of two calculatingkeys 34, or of a calculating key 34 and a decimal tabulator key 93(Figure l) is rendered impossible by the generally known roller key lockof the Mercedes-Addelektra-machine (not illustrated) On each calculatingkey lever 82 a pawl 95 is swingably mounted by a rivet 94 (Figures 2, 5and 7). A spring 96, attached to the tall 95:; of the pawl 95 isconnected to a nose 82g on the key lever 82. By means of this spring 96,the pawl 95, is acted on in the anti-clockwise direction round its rivet94. The normal position of the pawl 95 is determined by the contact ofthe right-angled bent lug 85b, on the pawl against the upper edge of thekey lever 82. The down- (not illustrated) in the ends of the pins 11 andwardly directed end 95d of the pawl iscapeble of co-acting with theright-angled upwardlybent nose 81 of a latch bar 98. On the right andleft hand ends of the latch, bar 98, pins 98a (Figures 5 and 6). areformed, one pin being ar-- ranged at each end. By means of these pins,the latch bar 98 is swingably mounted on the levers I00 and lnl, rigidlymounted at opposite ends of the rock shaft 99. The rock shaft 9! at itsright hand side is rotatably mounted by means of a set screw I02 (Figure5) ins. bearing member I03, fixed to a. cross bar I" by screws Ill.

Q l E error aseasvs tioned. The cross bar I! is fixed to both side walls04 and 05 of the machine housing I by screws Ills (Figure 4) which passthrough holes Illa and I051) (Figures Sand 6) of the bar I00.

By means of a spring Ill, which engages with a lug llb of the latch bar90, and is connected to a pin 090 (Figure 3) rigidly fixed to the rockshaft ll, the latch bar It is acted on in the anticlockwise directionround its pins lla, so that at its right-hand end its upper horizontalsurface presses upwards against a bent lug Illa on the stationarybearing block I03, whereby the normal position of the latch bar is isdetermined.

A key locking bar- Ill (Figures 2, 5, 6) is swingably mounted at bothits ends on the rock shaft 00, in the manner indicated in Figures 5 and6. At the right-hand and left-hand ends of the key locking bar III,further, pins Illa are fixed, with each of which a spring Illb (inFigure 5 has not been illustrated for the purpose of rendering otherparts visible) engages, which springs are connected, respectively, tobent lugs Illa and Illa of the levers I00 and Ill. By means of thesesprings Illb the key locking bar is always urged round thev rock shaft90 in the clockwise direction, whereby its normal position is determinedby contact with the pin Il0b, riveted to the lever Ill and by contactwith the pin Illb riveted to the lever Ill; The rightangled flange Illaof the key locking bar is capable of co-acting with the noses 02h(Figure 5) formed on the several calculating key levers 02, in a mannerto be hereinafter described.

On the rock shaft 00 (Figures 2, 5, 6) further, a lever III is rigidlymounted to the free end of which a pin 2 is riveted (in Figure 5 for thesake of illustration the same is indicated in the withdrawn position).The pin II2 of the lever III co-acts with the fork-shaped end of .an armI ll of a three-armed lever I ll, swingably mounted on the fulcrum rod00. The arm Illa of the three-armed lever III, co-acts with the stud 80,already mentioned, of the pawl 10, while the arm Illb of the same,co-acts with the cam I2, in a manner hereinafter described. A spring-II5 engages with a pin Ill! (in Figure 5, the pin Illf is shown removedfrom the lever Ill for purposes of illustration) riveted to the noseIlld (Figure 5) of the three-armed lever, the spring at itsother endbeing connected to a pin Illav (Figure 4) on a stay Illb, fixed to thepart 03 and to the cross bar I00. By means of this spring, thethree-armed lever I I4 is rocked clockwise round the fulcrum rod 68, inconsequence of which the lever III connected to it, the rock shaft 80,and the levers I00 and Ill pinned to it, the key locking bar H0, andfinally the latch bar 90, are urged in the anti-clockwise direction,

whereby the upper face of the lug llr, under the action of the springI00, and its lip 883 under the action. of the spring I ll, contacts withthe front edge Illa of the lug Illa, of the bearing member I00, wherebythe normal position of the parts IIl, III, ll, Ill, Ill, Ill and I0, isdetermined.

Further, onthe fulcrum rod is a lever Ill (Figures 2, 5) is swingablymounted, at the free endof which a roller III is arranged, capable ofmeeting with the cam 00. Bymeans of the swing II! whichcnzas withthe pinIll of theme:- Ill,andisccnnectedtothecrossbar 00, the roller H1 isalways maintained in contact with the cam 00.

1 The lever I20, which similarly is swingably mounted on the fulcrum rod68, is likewise capable of co-acting by means of its rearwardly directedarm, I20a (Figure 6) with the cam 59. By means of the spring I23, whichengages with the pin HI and is connected to a pin I22 (Figure 3) of thecross bar I05, the lever I20 is urged in the clockwise direction roundthe fulcrum rod- 08, whereby the projection I20b of this lever contactswith an ear I200, fixed to the key looking bar Ill, and the normalposition of the lever is thereby determined. I

By means of the set screws I21, screwed into the two side walls I25(Figure 3) of the calculating-mechanism I28 (Figures 1, 2, 3 and '7) adifferential shaft I28 is freely rotatable. To this shaft'l2ldependingfeeler fingers I29 are adiustably secured in position, the lower freeends of which fingers are forwardly bent and'are capable of co-acting bymeans of their slightly arched faces I30 with the stop pins Ill (as bestshown in Figure '1) arranged on the stop memwhich is located on thedifferential shaft I28 at the right hand side of the machine to the leftof the feeler finger I28 corresponding to the value 0, is the shortest.v

The feeler finger I29, corresponding to the value "0, is arranged so asto be capable of being fixed by means of screws I29b (Figures 3 and 7)to a lever 204, hereinafter described in detail, fixed to the projectionI290 of a clamping member I29d. As the feeler finger I29, correspondingto the value "0 is not allowed to executeany swinging movement, becausesuch movement would also be permitted the calculating sector I14, wouldbe swung therewith and in this manner a wrong value would be registeredin one of the column totalizer 6, the right-angled bent end of thefeeler finger I29 (Figure 4) corresponding to the value "0 is stilllonger than the right-angled bent and of the feeler finger I29,corresponding to the value 1" so as to prevent any movement of thecalculating sector I'll when the zero key is depressed.

On the printer shaft 81 (Figure 8) a printer locking lever 81a is pinnedwhich is capable of co-acting by means of its nose 81b with the lug 010of a machine locking lever 81d pivoted on a screw 01c mounted on asupporting bracket elf, screwed fast to the cross bar I05. A fork-shapedpart 81!, of the :bracket I05 embraces the fulcrum rod 68, and thussupports the same. On the machine locking lever 81d an arm lid is bentin the form of a U, to the upwardly projecting nection llo, IIp. At itsupper end, the link Mn is jointed to one end of a lever 811', rotatableon the screw 81q (Figure 8), the opposite end of which lever co-actswith one end of a lever 81s, rotatably mounted on the master wheel shaftI86 (Figure 7). The feeler lever 81s is capable by means of its nose 81sof feeling the cam bars 812?, arranged on the column totalizers TI toT8.

Thefeeler lever, 61s, moreover, co-acts with a locking lever 8111.,mounted on the locking shaft I42, which locking lever is connected withthe sensing lever 81s by a spring 8112. If no cam bar 81t of a columntotalizer lies over the nose 81s of the feeler lever 81s, or if the nose81s lies in the intermediate space 81b of two cam bars 81t, so the nose81s" of the feeler lever 81s lies in the path of the shoulder 811" ofthe locking lever 81u under the action of the. spring 811:, whereby therest position of the feeler lever 81s is determined. If the feeler lever81s is in the rest position, the intermediate lever 81r is swungclockwise around the screw 81q under the action of the spring 81w, whichengages with the link 311i. Hereby the free end of the intermediatelever 811 lies against the nose '81s of the feeler lever 81s whereby therest position of the levers 811" and 81s is determined. In this case,also, the machine lockin lever 8111 is swung by-the link 812 in theanticlockwis direction against the action of the spring 810: whichengages the machine locking lever 81d, and is weaker than the spring81w, whereby the lug 810 at the rear end of the lever 81d, moves infront of the nose 81b of the printer locking lever 81a and prevents thelatter from swinging in the clockwise direction. Similarly,

the nose 81d" of the machine locking lever 81d moves behind the edge 98'of the hook 98" of the latch bar 98, whereby a swinging of the latch bar98 in the anti-clockwise direction is prevented.

A roller lever I32 is loosely rotatable on the printer shaft 81 (Figuresand '1) and on the free forwardly-directed end of this lever a rollerI33 is mounted capable of co-acting with the cam 69, hereinbeforedescribed. To the roller lever I32 is jointed a draw-bar I34 which,at'its upwardly directed free end, is jointed by a screw I35'(Figures 2,3 and '7) to the lever I31, loosely rotatable on the locking shaft I42.By means of a spring I4 I which engages with the pin I38, rigidlymounted on the draw-bar and is connected to a pin I40, rigidly mountedon the front wall 'I39 (Figures 2 and 5) of the calculating mechanismI26," the draw-bar I34 is urged always in the di-' rection ofthe arrow a(Figures 5 and 7), so thatto the lever I36, whereby both levers I36 andI31 are yieldingly connected to one another.

To the lever I36, one end of a connecting member I48 is jointed by ascrew I41, the opposite end being jointed to one arm of an angle leverI50 (Figures 3, 7) by a screw I49. The lever I50, again, is swingablymounted by-a screw I5I on a mounted in any suitable manner in the twoside walls I25 of the calculating mechanism I26. With the sleeve I51 agear wheel I59, likewise mounted 7 so as to be axially displaceable onthe shaft I58, is in fixed connection. Pins I (Figure 3) are arranged onthe toothed wheel I59, and these pins are always in engagement with aclaw I6I (Figures 3 and '7) rigidly mounted on the transmission shaftI58. Further, on the transmission shaft I58 is arranged a toothed wheelI62, the pins I63 of which are likewise in engagement with the claw I6I(Figures 3 and 7). The toothed wheel I62 is rigidly connected to a ringgrooved sleeve I64 (Figure 3) arranged so as to be axially displaceableon the transmission shaft I58.

On the printer shaft 81 (Figures 3, 5 and 7) there is rigidly mountedaprinter lever I65, on the free-downwardly projecting end (Figure 5) ofwhich a roller I66 is arranged, and this roller is capable of co-actingwith the cam 1I, hereinbefore described. The printer lever I65 is,moreover, fixed on the printer shaft 81 in such a manner that its rollerI66 is normally in contact with the cam 1I. r Besides, on the shaft 81(Figures 3, 5, 7) a lever I61 is arranged, so as to be loosely rotatablethereon. To the lever I61 a roller I68 is attached.

so as to be rotatable, and this roller iscapable of co-acting with thecam 12, hereinbefore described, in a manner to be hereinafter describedin detail. To the lever I51 a slide I10 is jointed by means of a headedscrew I69. By means of a spring I1I connected to apin I12,'arranged onthe slide I10 and to a pin I13 (Figure 3) arranged on the front side ofthe calculating mechanism, the slide I10 is always acted upon downwardsin upwardly directed part of the calculating sector I14 is provided withteeth I11, with which the maindriving gear 'wheel I59, hereinbeforedescribed, is capable of being moved into engagemerit. The toothedsector I 14 (Figures 2, 3, 7)

which is actuated on striking a calculatingkey 34, in a manner to behereinafter described, transmits the swinging movement corresponding tothe value of the struck key, by way of the toothed wheel I59, andtransmission shaft I58, to a locking wheel I18 (Figure 7) rigidlymounted on the shaft I58; which locking wheel is always in enbracketI52, fixed by screws I53 (Figure 3) to the front wall I54. To the anglelever I50 (Figure '7) 'is fixed apin I55, which projects into a 'ringgagement with a guide and locking tooth I19. Further, on thetransmission shaft I58 a toothed wheel I is mounted so as to be capableof axial displacement. Wheel I80 is normally in engagement with atoothed wheel I8I, integrally formed with a hollow shaft I82, and atoothed wheel I83. The unit I8I, I82 and I83 is rotatably mounted on ashaft I 84, fixed in the left-hand wall I25 (Figure 3) of thecalculating mechanism. The toothed wheel I 83, again, is in engagementwith a toothed wheel I85, rigidly mounted on a master wheel shaft I86rotatably mounted in the lefthand side wall I25 of the calculatingmechanism and in a bearing member (not illustrated) arrangedapproximately at the centre of the machine.

Beside the toothed wheel I85, there is a further toothed wheel I81,mounted so as to be nonrotatable on the shaft I88. Further, on themaster wheel shaft I88 a master wheel I89 (Figure 7) is rigidly mounted,with which the toothed wheels I88 (Figure 2) of the column totalizers Tengage in the working position.

On the wheel I58, a ring grooved sleeve I88 is rigidly mounted, intowhich groove projects a pin I8| of a lever I83, rigidly moimted on thestate control shaft I82, rotatably mounted in the calculating mechanism.The driving of the toothed wheel I85 (Figure 7) on a rotational movementof the transmission shaft I58, is effected by. a

coupling disc I8IIa, pinned to the transmission shaft I58, and engagedby claws I8Iib, rigidly connected with the toothed wheel I80.

On the printer shaft 81 (Figures 2 and '1) there is rigidly mounted alever I84, to the free upwardly directed end of which a draw-bar I95 isjointed by the screw I85. A nose I81 of the drawbar I88 engages over anose I88 ofa lever I89 rigidly mounted -on the locking shaft I42. Bymeans of a-spring 280 which engages with the draw-bar I85, and which isconnected in the calculating mechanism in any suitable manner, the leverI88 is normally swung about the screw I85 in the anti-clockwisedirection, whereby the lever I58 is normally positioned so that its noseI91 always remains in engagement with the nose I98 of the lever I88. Thelever I38 rests against a pin 2III, arranged in any suitable manner inthe calculating mechanism.

On the locking shaft I42 (Figures 2, 7) there is fixed a release finger282 capable of acting on a locking lever 451 and on similar levers 458,all of which are arranged in the totalizers TI to T8 in a manner to behereinafter described. Further,

on the locking shaft I42 there is a locking tooth' 253 rigidly mounted,capable of co-acting with the master wheel I88, rigidly mounted on themaster wheel shaft I55.

On the clamp I28d (Figures 3 and '1) as already hereinbefore described,a member 204 is also mounted by screws H817, and to the lower end of themember 284, which is somewhat bent at the rear, a bail arm 205 isjointed by a screw 205. On the left-hand side of the machine a clamp 288is arranged so as to be capable of adjustment and to be clamped inposition by a screw 251. To the projection, 258 of the clamp 288 amember 2| I, correspondingly formed to that in Figure '7 is fixed byscrews 2III, and to the free downwardly projecting end of the member 2"there is attached a bail arm 2I3 by a screw 2I2. A bar 2I5,correspondingly formed to that in Figure 7, is

fixed to the bail arm 213, and 285 by screws 2I4 and 215, respectively,so that a frame consisting of the parts 288, 2, 2I3, 2I8, 255, 204 andI29d is formed.

The bail arm 203 (Figure 7) located on the right-hand side of themachine, moreover, is guided'by a headed screw 2II, which projectsthrough an elongated slot 2I8 of a. lever 2I9, rigidly mounted on theprinter shaft 81 and the bail arm 2I3, arranged on the left-hand side ofthe machine, is guided by a headed screw 225, which projects through theelongated slot 22I of a lever 222, also rigidly mounted on the printershaft 81, so that the bail 2I3, 2I5, 205, is prevented from :vgngingdownwardly round the screws 2I2 and nected at their free ends in anysuitable manner With the arm 2.23 of the lever 222, and with. the arm224 of the lever 2I9, engage springs 225, a one springwith each arm,which springs are conin the machine housing, and these springs act uponthe levers 222 and 2I8, and consequently thenose I98 of the lever I89.The bar 2I5 of the bail 2I3, 2I5 205, in a manner to be described later,is capable of co-acting with the noses 35;: formed on the downwardly andforwardly extending number key levers 35 (Figure 3). Moreover the noses359 are arranged on forward extensions 35h of different lengths on thenumber key levers 35, the lengths of these extensions corresponding totheir values 0 to 9,'the extension 35h corresponding to the value 0(Figure 3) being the shortest and the extension corresponding to thevalue 9 being the longest.

The numeral wheel train of each column totalizer T as the totalizers arebrought to the adding zone, are releasably locked against rotation andalso aligned for correct mesh with the master wheel by a locking andaligning tooth 253. The locking and aligning tooth 253 is, as is evidentfrom Figure 7, of U-shape.

An elongated hole 254 is provided in each of the limbs 252 and 253a, andthrough these holes projects the master wheel shaft I85 alreadydescribed. Into the elongated hole 255, arranged in the limb 252 of thelocking and aligning tooth 253, and correspondingly formed to that inFigure 9, there projects a pin 25! rigidly mounted on the lever 255 faston the locking shaft I42, hereinbefore described.

A spring 258 engages with a lug 259 of the looking and aligning tooth253 and is connected to the lever 255. The locking and aligning tooth253 is positioned in its normal position with the lower end wall of itselongated hole 254, resting against the master wheel shaft I86 and theupper end wall of the elongated hole 255, against the pin 251 of thelever 255. On the bridge connecting the two limbs 252 and 253a of thelocking and aligning tooth 253, a tooth-like projection 250 is formed,capable of engaging in the tooth spaces of the toothed wheels I88,arranged in the column totalizers.

A detent lever 354 (Figs. 9 and 10) is fast on a shaft 353 joumaled inthe right hand side wall I25 of the calculating mechanism housing and ina suitable. bracket, not shown, mounted in the housing,

A locking and aligning pawl 352 is forked at its forward end to embracethe hub 35311 of a cross footer master wheel 352 loosely mounted on thecross footer master wheel shaft 323.

The rear end of the locking and aligning pawl 352 is loosely attached at355 to one side face of the upper end of the detent lever 354. A spring355 connected at 351 to the upper end of the detent lever 354 and to thelocking and aligning pawl 352, holds the two in their normal relativepositions.

'One of the tines of the forked forward end of the locking and aligningpawl 352 is formed into a chisel-like tooth 358 to engage between the tth of the denominational trains of the cross total er QI as such trainsare successively presented to the pawl. a

A nose 35I on the detent lever 354 normally engages the master wheel 352of cross totalizer QI, the hub 353a of the master wheel having acoupling member 353 formed at that end opposite the master wheel 352. V

A similar locking and aligning pawl 351 is forked Wlllllm at its forwardend to embrece the nub ltlg of e master wheel 372 ,Joumelecl on thecross foot-er master wheel shaft 323. Tee your end of the loclsing andaligning pawl St?! is loosely connected at 388, 3882: t-Q th@ side faceof the upper end of o, detent'lever 3S3 fast on the rotatable shaft 358.Like the locking and aligning pawl 352, the duolicate pawl 3 53 foes s.tooth QJl formed on the upper time all? to engage with the toothedwheels of the denominational trains of goers of the cross totelizer Q2,not shown, and e. spring co nested at 3772-3 to the ueteut lever 869,and at Stlo to the aligning pawl 36?, maintains the detent end pawl intheir normal relative positions. The tooth t'll of the detent lever 3S9normally enases and locks the cross footer master wheel 3 72.

A couplin member 53% u for-med at that end the cross footer muster wheelMB. In both fin stances, the cross lootezc muster wheels 362, tlfl,though rotatable on their supporting shaft 328, ere not axially movablethereon, which, ls costly or ranged by forming grooves in the respectivehues 362a, 361g to accommodate the forked ends of the locking andaligning powls 852 SE37], respectively.

A coupling sleeve 3718 is interposed between the two coupling members 3%on the cross footer muster wheel shaft 323, the coupllue sleeve beingavialiy shifteble but non-rotetably mounted on the cross footer masterwheel shaft end having couplin members SJdond 371? formed at its opeposlte ends to co-ect with the coupling members 363 and 335,respectively.

The coupling sleeve 378 has three posltions, in one of which it engagesonly the coupling member 363 of the cross footer master wheel $62 forcross footer Ql; inonother of which, it engages only the coupling member3'35 of the cross footer Q2, and in its intermediate posltlon, thecoupling ends 376 and SW of the sleeve 3 18 engage both couof the crossfooter muster wheel hub llol'g opposite co-ects likewise with thelocking flap 468.

pling members 383 and 3'85 of the respective cross footers Qt and Q2 toefiect the simultaneou op= eratlon thereof. The smelly shlftoolecoupling sleeve 3'18 is shifted by a. shift lever Mills, pivoted at 378mon a lug projecting from the rear wall 2M (Fig. 3) of the calculatingmechemlsm, the shift lever carrying at its free end a pin 311thaccommodated in a circumferential groove snu formed on the sleeve 3%. Aconnecting rod 3189, one end of which is piv- Oted at 8m to the shiftlever 37%: intermediate the pivot 318m and the free end of the lever,cou-= nects the shift lever with one arm of e bell crank 318s pivoted at81c, the free end MW of the remaining arm of the bell crank 318s,projecting into the path of cams 313g! mounted at 3182: on 1 therespective column totallzers T.

Motion is transmitted from the locking shaft I42 to the cross footerlocking shaft 853 asfol lows: The rarwardly projecting end 313 of alever 313a fast on the shaft 353 is articulated as at 383 withthelforwardly projecting arm of a bell crank 33f joun'galed on the shaftI42 adjacent the right hand sidewall of the calculating mechanism. Thevertically extending arm 383 of the bell crank 33!, 382 is recessed asat 383 to accommodate a lateral tenon 38 3 projecting from an arm 334parallel with the arm 332 of the bell crank, but fast on the10k1ng-$haft I43 on the opposite side of thesldewall I25. v

A spring 31lc connected to the o p site arm of the articulated lever313a and to the cross footer locking shaft 353 tends to rock the shaft383 clockwise to yieldlngly hold the to'tallzer wheel detcnta 3M and 369engaged with their respective cross footer totalizer master wheels 362end 812.

On a cross rod 456 (Figure 11) rigidly mounted in the two side walls 454end-455 of a totallzer, a locking lever is swingably mounted in thelowest decimal place, and is formed with its lower end of fork-shape.The release lever 202 (Figure 7), herelnbefore described, is capable ofengaging in the fork-shaped part 858, to rock the levercounterclockwise. With the locking lever 451! there engages e. spn'lng655, which is connected to o. nod lull mounted in the two side walls 454end 455 of the column totallzer T. The spring 359 acts on the lockinglever in the clockwise direction round the cross rod 456, whereby itsnormal posltlon is determined by the engagement of the tooth 668 of thelocking lever with the 3-toothecl wheel lBfiHt rotatably mounted on thebearing shaft 382.

With the toothed wheel flttHt (Fig. 11) of the lowest decimal piece, adisc 365 provided with,

three tens-shift or transfer teeth 36 3, and a pe ripherelly recesseddisc 368, are rigidly connected. The three parts 8H2, ass and 48B, areproduced from 9. single piece and consequently represent e. singleelement. The nose 46'! provided on the upwardly-directed free end of thelocking lever 5? is capable of octlug on a. locklug flap 368 rockulolymounted in the two side walls 456 and 458.

To the right of the locking lever 45? (as seen in Figure 11) there is a,transfer lever 469 swingo'oly mounted on the cross rod 856. Thedownwordly directed am 416 of the transfer lever 389 is of fork-shape,and is capable of co actin likewise with the release finger- 2M2 abovementioned. The nose Ml of the transfer lever 463 On the transfer lever458 a, transfer wheel is rotatobly mounted by means of o heeded rivet412 (Fig. 11), the transfer wheel consistingcf a tentoothed wheel 4'58,e. ten-toothed Maltese wheel W4 and a. ten-toothed wheel 4%, producedfrom a single piece, of which the toothed wheel 473 is capable ofco-ectlng with the three-toothed tensshift disc 465, and the Maltesewheel 474, with the peripherally recessed locking disc 468 which isprovided with three notches 416 for the free passage of the teethof theMaltese wheel.

The toothed wheel HBBHZ is, further, in eneasement with an intermediategear M1 (Figs. 2 and 11), which is loosely l'otatable on a shaft 418,rigidly mounted in the two side walls 454 and 455 of the columntotallzer T. The intermediate gear 411 is in engagement with the toothedwheel 480 (Fig. 2), loosely rotatable on the numeral wheel shaft 419,rigidly mounted in the two side wells 454 and 455 of the columntotalizer. A numeral wheel 48! is rigidly connected with the toothedwheel 480. The transfer wheel, 41!, associated with the lowest decimalplace of the hundredths' decimal place, is in engagement with the wheelI88Zt of the tens declmal place. The parts above described for thehundredths decimal place are similar for the tenths, units, tens, etc.,decimal places. In. th

following, therefore, only the difference will be p inted out.

By means of a second locking lever 482 (Fig.

11) swlngably mounted on the cross rod 458, of

which lever the-nose 483 acts on the locking flap 468, the flap 438 isheld swung in the anti-clockwise direction, whereby its rest position isdetermlned by its contact with the noses 431 of the levers 451,- 433 andby contact of the noses I three-armed lever II4 lying in its path ofmovement, androcks the upper arm II4a of the lever H4, in theanti-clockwise direction back into the path of movement of the nose 80of the pawl 14, into position to disengage the pawl 14 in a manner to belater described. By the return of the lever ll 4, the tension spring H5,is again tensioned and thelatch bar 33, mounted on the levers I and IIIIis returned by the arm III connected to the lever H4, and by theresulting swinging movement of the rock shaft 33, in the clockwisedirection, whereby the nose 38a: of the latch bar 33, moves behind thelug I03a of the stationary support I03, under the pull of the spring I09, In consequence of the shifting movement of the latch bar 93 in theclockwise direction, the nose 35d of the pawl 35 on the de-- pressed keylever 32 falls behind the nose 91 of the latch bar 33 since, at thismoment, the key lever 32 concerned is still depressed and is held by thekey locking bar IIO which is held by the catch I20. Although the keylocking bar H0 is held swung in its position in the anti-clockwise -I31pivotally connected with thedraw-bar I34 (Figure '1) by the screw I35,is thereby moved downwards along with the draw-bar. ,The pin I43, fixedto the part I31, which passes through the slot I44 of the lever I33,takes the latter and the locking shaft I42 along with it in theclockwise direction.- The angle lever I50, which is jointed to the leverI33 through an angle member I43, is likewise, through the movement ofthe draw-bar, swung round its pivot I5l in the anticlockwise direction.Consequently the downwardly extending arm of the lever I50 displaces thetoothed wheel I53, non-rotatably mounted on Y the shaft I 53, in thearrow direction (12, by means of its grooved connection I55 and I53,whereby the teeth of the same engage with the teeth I11 of thecalculating sector I14. The pins I (Figure 3) arranged on the toothedwheel I53, which are continually guided in the grooves of the claw I3I,rigidly mounted on the transmission shaft I33, ensure that the teeth ofthe toothed-wheel I33 slide securely into the teeth of the calculatingsector I11 (Figure '7) As already mentioned, the locking shaft I42 isrotated in the clockwise direction by the lever I33, whereby thefingershaped release lever 202 rigidly mounted on the lockin shaft I42is swung and the locking lever 431 or 433, partially illustrated inFigure '7, unlocks the corresponding decimal wheel of the totalizer TIlocated in the working position.

Further, the adjusting and locking tooth 203, rigidly mounted on theshaft I42, releases the master wheel I33,-and the master wheel shaft,

locking shaft I42, swings in the clockwise direction and releases thenose I31 of the lever I33 Jointed to the lever I34, by means of a screwI33.

After these movements have taken place, the diflerential control cam 12,which has rotated to bring its lower curved part in the vicinity of theroller I33 on lever I31 to enable the lever I31 at 30 degrees followingthe pull (Figure 7) of the spring I1I,' is swung round its shaft 31 andaccordingly the slide I10 (Figure 5) is drawn in the direction of thearrow a. By the downward movement of the slide I10, the cam slot 613::(Figure 7) acts on the roller I15 (Figs. 3, 7) arranged on thecalculating sector I13, Ill? and projecting through the slot I13. and asthe Y pin I 3| of the stop-piece 35, which has been swung upwards bydepression of the calculating key 34, corresponding to the value 2. Thestroke of the feeler finger M3 is transmitted to thecalculating sectorI14, I11, and accordingly the toothed wheel I59 (Figure?) which is inen- Easement with the sector is rotated through two units, whereby thevalue is transmitted by the shaft I58, and the change-over gear I30 (Figure 7) I31, which was previously set for addition, throughthe knob 3I5(Figure 1), and the master wheel shaft I33, to the master wheel I89,which on its partyenters the value 2 in the corresponding totalizerdecimal'wheel of the column totalizer Tl.

By the contact of the i'eeler finger I23, corresponding to the value 2,with the stop member Ill, the slide I10, together with the roller I38 onlever I31, was prevented from further downward movement and since theformation of the cam 12 (Figure 5) is adapted for the greatest stroke,namely, for the stroke of'the feeler finger I23, correspondingto thevalue 9, the roller I33 on lever I31 remains for a short time freelysuspended, and on the further rotation of the cam 12 is engaged andrestored to normal position. Before, however, the return of the rollerI33 on the lever I31 and the slide I10 connected with it occurs, thearms 204 and 2 (Figures 3 and 7) rigidly mounted on the ends of thedifferential shaft I23, participate in the swinging movement of thefeeler fingers I23 (or of the calculating sector I14, I11) andof theshaft I23. Accordingly the type selecting frame 2I3, 2I3 and 203,jointed at the points 2I2 and 205 and guided on the slide bars 2I3, 222by screws 220 and 2I1, will slide forwards through an amountcorresponding to the value 2. The lower edge 2| 3a of the bail 2I3thereby is positioned over the nose 35g (Figure 3) of the number keylever 35, corresponding to the value 2. Shortly, thereafter, the rollerI33 mounted 0 the lever I35 rigidly connected with the printer shaft 31(Figures 5, 7) falls into the depression of the cam H at degreeswhereupon the arms 2I3.and 222, rigidly connected to the shaft 31, areswung in the clockwise direction by the springs 223 engaging with theirshort arms 223 and 224, and with them also the selecting frame 2| 3,2I3, 233 guided by them. This frame thereby strikes on the nose 33g ofthe number typing key lever 33, corresponding tothe value "2 and pressesthis lever downwards against the action of its that the projection ofthe locking lever 481, in the tooth spaces of the toothed wheels I88.The lever 482, moreover, is held swimg in the clockwise direction bymeans of a spring (not illustrated) which engages withthe hole 488 ofthe lever 482.

As no calculating operation should be permitted in the totalizer whenany of its decimal positions is in register with the master wheel, thelocking shatt I42 (Fig. 'I) and the parts located on it are preventedfrom being unlocked by the release finger 202, which when thepunctuation place of the column totalizer is opposite the master wheelI89, co-acts with the stop SS (Fig. 11) swingably mounted on the crossrod 408 of the column totalizer T in such a manner 481 of the stop SScontacts the anchor rod 480 fixed in the side walls 454, 455 of thetotalizer T. Consequently the release finger 202 is prevented fromswinging in clockwise direction.

After the number 15" has been typed and by utilizing the space key S(Figure 1 and 2) the paper carriage 4 has been brought into a positionin which the column indicated by "3 is in the typing position. By meansof the letter keys 32, the months column 3 is now filled in, whereby thepaper carriage 4 is brought so that the column of the sheet indicated by"4 is in the typing position.

As already stated, the paper carriage 4 is located so that the column 4of the sheet is in the typing field whereby the totalizer TI i also inthe working position. Moreover, the carriage 82 carrying both of thecross totalizers QI and Q2 has been drawn so far to the left, by thecolumn totalizer T4 and the coupling device s, sI (Fig. i) that thecorresponding decimal wheels of the cross totalizers lie opposite theirmaster wheels 382 and 312, Fig. 10. When the column totalizer TI arrivedin its working position, the bar 8'It (Figure 8) fixed to the samedepressed the nose 818' of the lever. 81s, whereby the nose, 81s" of thelever 81s released the lever 81a, and the remaining parts operable bythe lever 81s assumed positions according to Figure 8, so that the locking lever 81a of the printer shaft 81 and the hook 98" of the latch bar98, were released by the lever 81d,,and can move freely. Now thecalculating keys'34, corresponding to the amount of "RM200" aredepressed after one another, the key corresponding to the value 2 beingstruck first. On

the depression of the calculating key lever corresponding to the value2, the rearwardlydirected arm on the calculating key lever 82 (Figures 5and '7) is swung round the fulcrum rod 88 in'the clockwise direction";whereby the associated U-shaped stop member-85, the downwardly directedlimb 84 of which contacts with a face 82a of the calculating key lever82, is swung in the anti-clockwise direction round its printer shaft 81.The contact pin I3I, provided on the stop member 85, thereby moves intothe path of movement of the arm I30 of the feeler wise against theaction of the spring I09 to disengage the edge 98s of the lug 981:(Figure 5) of the latch bar 98, from the edge I03g of the laterallyprojecting lug or stop I03a, whereby the spring III is" freed to rockthe shaft 99 with its 20 The method ofoperation of the invention willhis levers I00, IM and III and the three-armed lever II4, mounted on thefulcrum rod 68, and in engagement with the lever I I I, by the pin-slotconnection.

On the swinging of the parts I00, 98' and IIII in the anti-clockwisedirection, the appropriate nose 91 of the latch bar 98 slides underneaththe nose 98d of the pawl 95. The key locking bar I I0 swingably arrangedon the shaft 99, the ends of which key locking bar, because of thetension Of the spring IIOb, normally lies against pins I00!) and IOIb,respectively, and participates in the counter-clockwise movement uponthe release of the latch bar 98 from the stop I03a. By the movement ofthe key locking bar IIO, the flange IIOg, slides over a nose 82h (Figure5) of the depressed key lever 82, and locks the same in the depressedposition. Further, a projecting lug I'20c, fixed to the locking bar II0, participates in the swinging movement and slides along on the underedge of a lock-retaining catch I (Figure 5) swingably mounted on thetulcrum rod 88. The pull of the spring I23, attached to the catch I20,fits the recess I20d in the catch over the upper end of the lug I 20cuntil the cams 69, near the end or a machine cycle, rock the catch I20to release the lug I200, as well as the key locking bar H0, in a mannerto be later described. A depressed calculating key lever, therefore, isnot released until the corresponding value has been transferred. Alsosimultaneous depression of two calculating keys 34, cannot take placeowing to a well known roller lock. As already explained, on striking thecalculating key 82, corresponding to the value 2, the system of leversI00, IM and III, attached to the rock shaft 99, as well as thethree-armed lever II4, swingably mounted on the fulcrum rod 68, havebeen released, whereby the latter lever, under the pull of its springH5, has been swung in the direction of the arrow m (Figures 5, 2). Thenose H41: of the upwardly directed arm I I4a, of the lever II4, movesout of the path of the nose 80, of the pawl I4. The downwardly-directedarm I D, on the other hand, has moved into the path of movefollow in thearrow direction 0 under the pressure of the spring I9, on swinging outof the lever nose 41:, whereby the tooth 14a of the pawl I4, moves intoengagement with the toothed wheel I3, rotated by the parts 58 (Figure l)59, 58, 81 and 28 to 30; whereby allthree cams 89, II and I2, arecoupled with the toothed wheel I3 so that they participate in therotational movement of the toothed wheel in the arrow direction I)(Figures 2, 5).

In the rotation of the three cams, after the nose 80 of the pawl I4, hasjust moved past the nose I I4a of the three-armed lever M4, the cam'Ilfirst acts at degrees on the arm II4b of the spring 88 (Figure 2).The control tooth 49c of v the drawhook 48 is moved by the couplinglever 4I into engagement with the fluted shaft 0. This now draws thedraw-hook 49 forwardly and through the intermediate lever 41, causes thetype lever 54 bearing the type 2 to strike on the platen 5. During thestriking movement the control tooth 49c moves out of engagement with thefluted shaft C. Through the striking movement of the type lever, thepaper carriage has been moved by the escapement 54a to 54s one step tothe left under the pull of the carriage draw-spring so that the nextlower denominational wheel of the column totalizer TI now lies oppositeto the master wheel I89 (Figure '7) After the termination of thecalculating operation and before the'commencement of the paper carriageshift (in which the time 'for registration of the value is to be takeninto consideration) the raising of the roller I33 on lever I32,

loosely mounted upon the shaft 81, is effected at 145 degrees by theelevated part of the cam 89, which is indicated by 690. The slide I34(Fig. 'I) is thereby raised in the opposite direction of the arrow a torestore the lever I31, in the anticlockwise direction and by means ofthe flexible connection I43, I and I48, the lever I35 is also swung inthe anti-clockwise direction. In consequence of this swinging movementof the lever I36, the locking shaft I42 is swung in the anticlockwisedirection, and the axially shiftable wheel I59 is disengaged from thecalculating segment I" by means of the parts I48 and I50 (Figures '7 and3 By the rocking movement of the locking shaft I42 in the anti-clockwisedirection, the releasing finger 202 (Figure '7) has restored the lockinglever (in Figure '7 illustrated broken off), lying opposite to it, sothat the calculating wheel of the totalizer TI, in which the value 2 wasregistered is again locked. By the rocking movement of the locking shaftI42, in the anti-clockwise direction, the lever I99 (Figure '7) has alsobeen reengaged with and has swung the lever I98 against the action ofits spring 200.

As soon as these locking operations are completed, the carriage shiftoperation effected by the typing operation as above described, follows.

After the locking operation is effected, the roller I88 on the leverI55, rigidly mounted on the printershaft 81, is raised at 225 degrees bythe rising edge IIa (Figure 5) of the cam II to rock the shaft 81counter-clockwise. Accordingly, the arms 222 and 2I9, fixed on theprinter shaft 81, are also swung in the anti-clockwise direction,whereby the key selecting frame 2 I 3, 2 I8, 208 mounted in them, israised into its upper position. In consequence of this, the nose 35g(Figure 3) of the number key lever 35, corresponding to the value "2 isreleased. This now returns into its rest position under the action ofits spring 38 (Figure 2), whereby the coupling lever 4I, mounted on thekey lever again engages over the nose 45 of its co-operating draw lever49.

In the rocking movement of the printer shaft 81 (Fig. 7) in theanti-clockwise direction, the arm I94 has also raised the lever I96,whereby under the action of the spring 200. the nose I9'I of this leversnaps over' the nose I98 of the lever I99 already located in its restposition.

After the raising of the key selecting frame 2 I 3, 2I8, 208, the camI2, after 240 degrees of travel. brings its rising face 12b (Figure 5)into opera tion on the roller I88, mounted on lever IS'I, looselymounted on the printer shaft 81, to restore the lever into its restposition. The slide "0 was thereby raised against the action of itsspring "I, whereby the inclined slot I131: of the slide acts on theroller I15 of the calculating sector "4, which has meanwhile beenreleased from the wheel I59, and swings this sector in the oppositedirection to the arrow p. In consequence of this, the transmission shaftI28 rigidly connected to it is .returned, together with the feelerfingers I29 into their rest positions. Also the number key selectingframe 2I3, 2I8, 206 is returned to its rest position illustrated in Fig,'I, by the arms 204 and 2H jointed to it and rigidly mounted on thedifferential shaft I28, in which position the frame is held by theelevated part of the cam I I (Figure 5) Further, before the returnmovement of the number key selecting frame 2I3, 2I6, 208 to its restposition illustrated in Figure '7, the rising 'edge 890 (Figure 5) ofthe cam 89 operates at about 162 degrees on the end- I20a of the catchI20, whereby this catch is swung against the action of its spring I23.Consequently the nose I20b of the catch I20 releases the part I20c ofthe key locking bar IIO, whereby this bar under the action of its springI I0?) (Figure 6) tensioned by the previous return of the latch bar 98into its rest position, likewise moves back into its rest position.Accordingly, the nose 82h (Figure 5) of the calculating key lever 82corresponding to the value 2 is released, which lever under the actionof the spring 89 engaging with its associated stop member (Figure '7)now returns along with the stop member 85 into the rest positionillustrated in Figure '7, with the pawl mounted on the calculating keylever 82 above the edge 91 of the latch bar 98.

Finally, the nose 80 of the clutch pawl I4,

mounted on the coupling disc I2 (Figure 5) collides with the nose H43;of the three-armed clutch-disabling lever II4, already located in itsrest position, whereby the clutch pawl 14 is disengaged against theaction of its spring I9 from the wheel I3 of the continually rotatingdrive shaft 58. In order to prevent the cam series 69, II, I2 fromspringing back at the moment when the clutch pawl I4 is raised out of"engagement with the toothed wheel I3, the roller II! of the back lashpreventing dog IIG snaps at 200 degrees into the depression 69d of thecam 69 under the action of its strong spring II9, whereby the cam series89, 1I, I2 is held in the position illustrated in Figure 5. g v

It would be too exhaustive to repeat the process already described forthe registration of the value 2, for the values to be'registered in thetotalizers T2 to TB since the operations are exactly the same.

The following may be mentioned at this point briefly in addition.

The paper carriage or the totalizer TI is now located with the decimalwheel following that on which the value 2" is registered in the column4, in the working position, in which a 0 is to be registered, i. e. inthis case, therefore, no calculating operation is to take place, whilethe typing process must be released.

To this end, the feeler finger I29, corresponding to the zerocalculating key 82 (Figure '7) is fixed to the clamping jaw I 29d of thearm 204. On striking the zero calculating key 234, the same operationsoccur exactly as above described, only with the difference that inconsequence of the immediatecontact of the finger I29, corresponding tothe value 0, with its stop screw rect.

I9I, no swinging of the calculating segment results. However the bar 2I9is moved downwards and strikes the nose 95g of the number typing keycorresponding to the value and the associated type lever is caused tostrike. Incidentally, a carriage step is again eflected so that now theunits of dollars decimal wheel of the totalizer TI (the wheel lying tothe left of the punctuation place) is located in the working position,

Here, the same operations occur since a 0' is to be dealt with, wherebythe totalizer TI moves so that its punctuation place is inthe workingposition.

If, here, unintentionally a calculating key is struck, the coupling 69,'II I2, I4, would naturally make a revolution and the key selecting bar2 I9 would be moved downwards by the springs 229 under control of thecam II and the roller I65, I65, by way of the parts 91, 222, 2I9, andthe number typing key corresponding to the value of the depressed keywould be depressed, whereby the value printed would obviously be incor-In order to prevent this, the locking arrangement I91, I96, I99 isprovided which does not permit swinging of the printer shaft 91, andwith it a downward movement of the key selecting bar 2 I 6.

This locking action is obtainedby arranging a fixed locking member SS(Figure 11) in the punctuation position. Accordingly, the locking member88 prevents the release finger 292 (Figure 7), lying opposite to it fromrocking in the clockwise direction, and hence, the lock shaft I42 andthe lever I99 remain substantially in their rest positions- As a resultthe lever I96 is not released, and as the lever I26 cannot rock becausethe lock shaft I 42 is held stationary the parts I48 and I50 connectedto it remain at rest. The axially slidable wheel I99, therefore, is notshifted into engagement with the calculating segment H4. Thissegment,however, can swing idly back and forth under the action of the springI'M, and the operating slide "0, and idly advance and retract thekey-selecting bar BIG. This, however, in consequence of theabove-mentioned eifective position of the locking device I99, I 96 willnot cause a numeral type actuation.

Nevertheless, if it is desired, a comma could be printed under thesecircumstances in the punctuation place. For this, it is only necessarythat the slots 2I9 (Figure 7) and 22I in the arm 2I9 and 222 be formedof such length that the calculating segment I14 can swing through tenunits so as to position the key-selecting bar 2I6 on a projection 95g(Figure 3) of the comma typing key. But, in ordeltto initiate a printingoperation, the locking device I99, (Figure 7) above described, must beabandoned, since this device would prevent a rocking movement of theprinter shaft 91, and therewith a downward movement of the key-selectingbar 2I9. In spite assa now considered, it should be clear withoutfurther explanation that for the further columns, including the column9, the same procedure is followed only with the difference that in thecolumns to 7, inclusive, the cross totalizer Ql is changed over tosubtraction under control of the cams 91H (Fig. 1) on correspondingcolumn totalizers T2 to T4, by means not shown, while the sleeve 319(Figure remains in its left-hand position in which th cross totalizer Q2is uncoupled.

In the columns 8 and 9, the sleeve 319 is brought into its middleposition under control of the cams .3181! (Fig. 11), on the totalizersT5 and T8, and positioned for addition so that the values shown in thecolumns 8 and 9, are added in both of the 4 cross totalizers QI and Q2.

The amount 184,30 is then visible in the cross totalizer QI and theamount 4.30" in the cross totalizer Q2.

I claim:

1. In a power-driven typewriting-accounting machine, the combinationwith a totalizer, the wheels of which are arranged in spaced groups;shiftable means individual to the respective totalizer wheels tonormally lock-thewheels against rotation; a rotatable locking shaft; 9.release means connected to the shaft to shift the individual totalizerwheel locks successively, to idle position, upon rotation of the. shaft;a stop member associated with the decimal space between the groups ofwheels, to prevent operation of the totalizer wheel lock-release meansand its locking shaft when the stop member is brought into the path ofthe totalizer wheel lock-release means; calculating keys; andmeans-including a rotatable print-initiating shaft, to record the digitsof an amount successively, consequent upon the depression or thecorresponding calculating keys; of means controlled by the locking 40shaft to normally lock the print-initiating shaft shiftable meansindividual to the respective of the swingingmovement of the segment I14,

however, 'no transmission of values takes place to the calculatingmechanism, since, as mentIoned, the wheel I99 is not in engagement withthe calculating segment I". In the present case. the typing of the commais discarded and hence the lock, I99, I99 is retained.

In order to pass from the punctuation position into the next lowerdecimal place, the space key S (Figures 1 and 2) is struck, so that. thetotalizer TI is now located with its tenths decimal wheel in the workingposition.

If the numerical example given in Figure 12 is totalizer wheels tonormally look the wheels against rotation; a rotatable locking shaft; arelease means connected to the shaft to shift the individual totalizerwheel locks successively, to idle positiomupon rotation of the shaft; astop member associated with the space between the groups of wheels, toprevent operation of the totalizer wheel lock-release means and itslocking shaft when the stop member is brought into the path of thetotalizer wheel lock-release means;

calculating keys; and means, including a rotatable print-initiatingshaft, to record the digits of an amount successively, consequent uponthe depression of the corresponding calculating keys; of a grippingelement mounted to rock with the locking shaft; a complementary grippingelement connected with the rotatable print-initiating shaft; and meansto yieldingly maintain the gripping elements inter-engaged to lock theprintinitiating shaft against rotation and thus prevent 'the operationof the digit-recording means when the totalizer wheel lock-release meansis arrested against operation. I

3. In a typewriting-accounting machine having a power-driven means, thecombination with a totalizer, the wheels of which are arranged in spacedgroups; shiftable means individual to the respective totalizer wheels tonormally look the wheels against rotation; a rotatable locking shaft;spring-operated means under control of the power-driven means, to rockthe locking shaft; a

releasing means connected to rock with the locking shaft to successivelyshift the individual totalizer wheel locks to idleposition; a stopmember associated with the space between the groups of totalizer wheelsto prevent operation of the totalizer wheel lock-releasing means and itslooking shaft when the stop member is brought into the path of thetotalizer wheel lock-release means; calculating keys; and means,including a print-initiating shaft rotatable from and to its homeposition, to record successively the digits ill

